Let's divide 21958593 by 638
Our goal is to divide 21958593 by 638.

Step 1:
2 divided by 638 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 638

Let's proceed to step 2:
638 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 638

Let's proceed to step 3:
638 goes into 219 0 times with a remainder of 219.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 219, we end up with 219.
Append the next digit (5) from the dividend to 219 and continue with: 2195 / 638

Advancing to step 4:
2195 divided by 638 is 3 with a remainder of 281.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 281 after subtracting 1914 from 2195.
Take the next digit (8) from the dividend and append it to 281, then repeat: 2818 / 638

Going ahead to step 5:
638 goes into 2818 4 times with a remainder of 266.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Subtracting 2552 from 2818 leaves us with 266.
Take the next digit (5) from the dividend and append it to 266, then repeat: 2665 / 638

Moving on to step 6:
638 can be fit into 2665 4 times, resulting in a remainder of 113.
Put 4 as the next digit of the answer. 
Result so far: 344.0
If we subtract 2552 from 2665, we get 113.
Bring next digit (9) of the dividend behind the 113 and repeat the process: 1139 / 638

On to step 7:
638 can be fit into 1139 1 times, resulting in a remainder of 501.
Put 1 as the next digit of the answer. 
Result so far: 3441.0
Deduct 638 from 1139 and we're left with 501.
Append the next digit (3) from the dividend to 501 and continue with: 5013 / 638

Let's proceed to step 8:
If we divide 5013 by 638, we get 7 and a remainder of 547.
Use 7 as the next digit of our solution. 
Result so far: 34417.0
Subtracting 4466 from 5013 leaves us with 547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Advancing to step 9:
638 can be fit into 5470 8 times, resulting in a remainder of 366.
The next digit of our result is 8. 
Result so far: 34417.8
Subtracting 5104 from 5470 leaves us with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Step 10:
The number 638 fits into 3660 5 times, leaving a remainder of 470.
Put 5 as the next digit of the answer. 
Result so far: 34417.85
If we take 3190 away from 3660, we end up with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Step 11:
638 can be fit into 4700 7 times, resulting in a remainder of 234.
The next digit of our result is 7. 
Result so far: 34417.857
If we take 4466 away from 4700, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Step 12:
If we divide 2340 by 638, we get 3 and a remainder of 426.
Use 3 as the next digit of our solution. 
Result so far: 34417.8573
Subtract 1914 from 2340 to get 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Let's proceed to step 13:
638 goes into 4260 6 times with a remainder of 432.
Write down 6 as next digit of the result. 
Result so far: 34417.85736
If we take 3828 away from 4260, we end up with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Let's proceed to step 14:
4320 divided by 638 is 6 with a remainder of 492.
Write down 6 as next digit of the result. 
Result so far: 34417.857366
If we take 3828 away from 4320, we end up with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

The final outcome is 34417.857366, with a leftover of 4.92e-05.